Effects of herbage allowance on the intake of churra ewes

Effects of herbage allowance on the intake of churra ewes

5 pages, 3 tables.-- Contributed to: Proceedings of the Second International Symposium on Livestock Farming Systems, 1992)

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Main Authors: Valdés, Carmen, Mantecón, Ángel R., Giráldez, Francisco Javier, Fernández Bermúdez, Florentino
Format: capítulo de libro biblioteca
Language:English
Published: 1994
Subjects:Sward height, Grazing, Herbage intake,
Online Access:http://hdl.handle.net/10261/23108
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spelling dig-igm-es-10261-231082021-04-20T14:51:41Z Effects of herbage allowance on the intake of churra ewes Valdés, Carmen Mantecón, Ángel R. Giráldez, Francisco Javier Fernández Bermúdez, Florentino Sward height Grazing Herbage intake 5 pages, 3 tables.-- Contributed to: Proceedings of the Second International Symposium on Livestock Farming Systems, 1992) The effects of two different levels of daily herbage allowance of groups of Churra ewes grazing on plots of a Lolium perenne-Trifolium repens pasture from March to September of 1989 were studied. Estimates of herbage intake were made in four periods (May, early and late July and September) using total faecal collections and “in vitro” organic matter digestibility of samples obtained from oesophageally fistulated ewes. Herbage mass and sward height varied in the range 653-1720 kg OM/ha and 3.4-12,5 cm, respectively. Asymptotic curves describe the relationship between total herbage intake (kg OM/ha) and herbage allowance (g OM/kg LW/day or sward height (cm). Both relations were examined by regression analysis using an equation of the form Y=aXb. Values of coefficient b obtained in each case were -0,20±0.048 (P<0.05) and - 0.40±0.098 (P<0.O5). Furthermore, herbage intake (g OM/kg LW/day) and sward height (cm) were positively correlated (r=0.55, P<0,05) and the value of coefficient b was 0.61±0.213 (P<0.05). The implications of these relations to techniques of grazing management are discussed in relation to better utilisation of lowland areas for extensive sheep production systems. Peer reviewed 2010-04-14T10:50:36Z 2010-04-14T10:50:36Z 1994 capítulo de libro http://purl.org/coar/resource_type/c_3248 A. Gibon, C. Flamant, (eds), The study of livestock farming systems in a research and development framework, pp.: 312-316 (1994) http://hdl.handle.net/10261/23108 en none 22195 bytes application/pdf
institution IGM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-igm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IGM España
language English
topic Sward height
Grazing
Herbage intake
Sward height
Grazing
Herbage intake
spellingShingle Sward height
Grazing
Herbage intake
Sward height
Grazing
Herbage intake
Valdés, Carmen
Mantecón, Ángel R.
Giráldez, Francisco Javier
Fernández Bermúdez, Florentino
Effects of herbage allowance on the intake of churra ewes
description 5 pages, 3 tables.-- Contributed to: Proceedings of the Second International Symposium on Livestock Farming Systems, 1992)
format capítulo de libro
topic_facet Sward height
Grazing
Herbage intake
author Valdés, Carmen
Mantecón, Ángel R.
Giráldez, Francisco Javier
Fernández Bermúdez, Florentino
author_facet Valdés, Carmen
Mantecón, Ángel R.
Giráldez, Francisco Javier
Fernández Bermúdez, Florentino
author_sort Valdés, Carmen
title Effects of herbage allowance on the intake of churra ewes
title_short Effects of herbage allowance on the intake of churra ewes
title_full Effects of herbage allowance on the intake of churra ewes
title_fullStr Effects of herbage allowance on the intake of churra ewes
title_full_unstemmed Effects of herbage allowance on the intake of churra ewes
title_sort effects of herbage allowance on the intake of churra ewes
publishDate 1994
url http://hdl.handle.net/10261/23108
work_keys_str_mv AT valdescarmen effectsofherbageallowanceontheintakeofchurraewes
AT manteconangelr effectsofherbageallowanceontheintakeofchurraewes
AT giraldezfranciscojavier effectsofherbageallowanceontheintakeofchurraewes
AT fernandezbermudezflorentino effectsofherbageallowanceontheintakeofchurraewes
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